<template>
  <div class="icon-dialog">
    <el-dialog
      v-bind="$attrs"
      width="980px"
      :modal-append-to-body="false"
      v-on="$listeners"
      @open="onOpen"
      @close="onClose"
    >
      <div slot="title">
        选择图标
        <el-input
          v-model="key"
          size="mini"
          :style="{width: '260px'}"
          placeholder="请输入图标名称"
          prefix-icon="el-icon-search"
          clearable
        />
      </div>
      <ul class="icon-ul">
        <li
          v-for="icon in iconList"
          :key="icon"
          :class="active===icon?'active-item':''"
          @click="onSelect(icon)"
        >
          <i :class="icon"/>
          <div>{{ icon }}</div>
        </li>
      </ul>
    </el-dialog>
  </div>
</template>
<script>
    import iconList from '@/utils/generator/icon.json'

    const originList = iconList.map(name => `el-icon-${name}`)

    export default {
        inheritAttrs: false,
        props: ['current'],
        data() {
            return {
                iconList: originList,
                active: null,
                key: ''
            }
        },
        watch: {
            key(val) {
                if (val) {
                    this.iconList = originList.filter(name => name.indexOf(val) > -1)
                } else {
                    this.iconList = originList
                }
            }
        },
        methods: {
            onOpen() {
                this.active = this.current
                this.key = ''
            },
            onClose() {
            },
            onSelect(icon) {
                this.active = icon
                this.$emit('select', icon)
                this.$emit('update:visible', false)
            }
        }
    }
</script>
<style lang="scss" scoped>
  .icon-ul {
    margin: 0;
    padding: 0;
    font-size: 0;

    li {
      list-style-type: none;
      text-align: center;
      font-size: 14px;
      display: inline-block;
      width: 16.66%;
      box-sizing: border-box;
      height: 108px;
      padding: 15px 6px 6px 6px;
      cursor: pointer;
      overflow: hidden;

      &:hover {
        background: #f2f2f2;
      }

      &.active-item {
        background: #e1f3fb;
        color: #7a6df0
      }

      > i {
        font-size: 30px;
        line-height: 50px;
      }
    }
  }

  .icon-dialog {
    ::v-deep .el-dialog {
      border-radius: 8px;
      margin-bottom: 0;
      margin-top: 4vh !important;
      display: flex;
      flex-direction: column;
      max-height: 92vh;
      overflow: hidden;
      box-sizing: border-box;

      .el-dialog__header {
        padding-top: 14px;
      }

      .el-dialog__body {
        margin: 0 20px 20px 20px;
        padding: 0;
        overflow: auto;
      }
    }
  }
</style>
